CloudKit does not support unsigned long long values with the high-order bit set. (30567424)
ApplicationsthatuseCKModifyRecordsOperationshouldspecifyanappropriate value for CKModifyRecordsOperation.isAtomic. If your client is compiled against watchOS 4, operations enqueued against the default CKRecordZone have new behavior because atomic is true by default. If the operation hits a „preflight“ failure (most commonly, a network issue uploading a CKAsset, or a malformed CKRecord), the entire operation is canceled. (30838858)

Core Media

Resolved Issues

• Haptics now play for frontmost apps. (32139107)

Dictation

Resolved Issues

• Languages are now available for Dictation on watchOS, including the newly released Shanghainese dictation. (32235495)

Foundation

Known Issues

• Topreservebackwardscompatibility,iOS11beta3removedtheNSURLSessionempty string behavior for suppressing the sending of HTTP headers that was introduced in beta 2. (32959604)

HealthKit

Resolved Issues
AddingdatatoaworkoutrouteusingHKWorkoutRouteBuildernolongerfails. (33080127)
Pressing the Side Button and Digital Crown pauses an active workout session even if the the app is not in the foreground. (30199786)

In Settings > Bluetooth, additional devices such as the paired iPhone no longer show as Not Connected. (32314078)
Permissions on Apple Watch are now reset when a user resets location and privacy using Settings > General > Reset > Reset Location & Privacy on iPhone. (32393123)

Siri

Resolved Issues

• Siri requests now work as expected in the iOS and watchOS simulators. (31971229)

• Siri now plays music that has been synced to Apple Watch. (31964674)

SiriKit

Resolved Issues

• SiriKit requests no longer fail with a “Sorry I can’t do that” error. (32305639)
• watchOS apps from TestFlight or the App Store now work with SiriKit. (32387616) • SiriKit requests on watchOS no longer fail with a Continue in App error. (32355820)

WatchKit

New Issues

• When scrolling with the crown, a view may render under the status bar resulting in clipping content that would normally be visible. (33730637)

Workaround: Scroll the content by dragging or swiping with your finger. Resolved Issues
For a watch app that includes complications, in watchOS 4 beta 4 and earlier, applicationDidFinishLaunching for the WKExtensionDelegate and willActivate for the root interface controller could be called without launching the app. This occurred when the watch extension was not already running, and complication code was called—for example after the initial app installation or when updating the timeline. This no longer happens. (33456326)
Anon-autoplayingWKInterfaceInlineMovienowworks.(32168160)
WKInterfaceInlineMovie objects now pause when moving an app to the

• Pressing the Side Button and Digital Crown no longer pauses an active workout session when the Workout app is not in the foreground. (30199786)

Known Issues

You may experience inaccurate distance measurements for Pool Swim workouts. (32816933)
Workout sessions may be slow to start and they may fail to update with calorie and distance measurements. (32313252)

Workaround: Call HKWorkoutRouteBuilder finishRouteWithWorkout:Metadata: only when some location data has been inserted to the builder.

Xcode

Resolved Issues

• Building and running a Watch app from Xcode your app now installs, launches, and attaches. (32180669)

Known Issues

• Crashlogs may take a few minutes to sync and be visible in Xcode. (31156191)